Asynchronous vs. Deferred JavaScript

In my article on Understanding the Critical Rendering Path, I wrote about the effect JavaScript files have on the Critical Rendering Path. JavaScript is considered a “parser blocking resource”. This means that the parsing of the HTML document itself i… Read more

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Using Rollup.js to create JavaScript modules

Using Rollup.JS to create JS modules and libraries is easy, it can easily output AMD, CJS, ES, IIFE and UMD JS formats with minimal configuration. Its plugin structure really nice too, you should find nearly anything you need here. This blog will focus on... (more…)

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